The Times of the Gentiles started in 34 AD - at the end of the 490 years which were the Seventy Weeks of Daniel.
You are conflating the phrases "the
TIMES of the Gentiles" (Lk21:24b) and "the
FULNESS of the Gentiles
be come in [G1525]" (Rom11:25).
These are distinct things.
"the TIMES of the Gentiles" is NOT comparable to the common label (if you will) of "the church age"...
Instead, it refers to "Gentile domination over Israel" pertaining to Neb's "dream/statue/image" with Neb as "head of gold" (I realize your viewpoint does not allow for this, but I ask you and the readers to really examine the
context of where this phrase is found,
including vv.23,20 [and
Jesus' words in Lk19:41-44 (
compare these with Matt22:7 [distinct from v.8, as I said], as well as its parallel in Rev11:2
b [
re: the "trodden down / trampling / tread under foot" phrase] and the particular "time period" that verse speaks of...
considering also what I had said about how
Lk21:32's "
till ALL be fulfilled" MUST INCLUDE what v24 had already just said about "and [they] shall be led away captive into all the nations" and this wording of "and Jerusalem shall be
trodden down of the Gentiles,
UNTIL the TIMES of the Gentiles
be fulfilled" [both of these phrases are included in the "till
ALL be fulfilled"
of v.32])
[keep in mind also the wording in Rev17:
8 "[the beast] that WAS,
and IS NOT, and
YET SHALL BE [future]" (from the perspective of when written)]